Entertainer Bobby Brown, right, stands outside of Emory Hospital in Atlanta where his daughter Bobbi Kristina Brown is being treated, Thursday, Feb. 5, 2015. Bobbi Kristina Brown, the only child of Bobby and the late Whitney Houston, has been hospitalized since Jan. 31 after being found unresponsive in a bathtub at a suburban Atlanta home. (AP Photo/Ron Harris)

NEW YORK, NY - OCTOBER 22: Bobbi Kristina Brown attends 'The Houstons: On Our Own' series premiere party at the Tribeca Grand Hotel on October 22, 2012 in New York City. (Photo by Shareif Ziyadat/FilmMagic)

NEW YORK, NY - OCTOBER 22: Nick Gordon and Bobbi Kristina Brown attends 'The Houstons: On Our Own' series premiere party at the Tribeca Grand Hotel on October 22, 2012 in New York City. (Photo by Shareif Ziyadat/FilmMagic)

GOOD MORNING AMERICA - 9/1/09
One of the most honored female artists of all time, Whitney Houston is making her first television appearance in over seven years on GOOD MORNING AMERICA, WEDNESDAY, SEPT. 2 (7-9 a.m., ET) on the ABC Television Network. Her free performance was taped in New York City's Central Park, 9/1/09. GM09 (Photo by Ida Mae Astute/ABC via Getty Images)
WHITNEY HOUSTON joined onstage by daughter BOBBI KRISTINA

Whitney Houston, right, thanks the crowd after being honored with a lifetime achievement award at the first BET awards Tuesday, June 19, 2001, at a hotel in Las Vegas. The BET Awards are given to black entertainers and athletes in music, film and sports categories. The 15 awards were voted by record label executives, media and fans. Her mother, Cissy Houston, left, and her daughter, Bobbi Kristina Brown, center, presented her award. (AP Photo/Joe Cavaretta)

US singer Whitney Houston and her huband bobby Brown attend welcoming ceremony hosted by the polygamous Black Hebrew sect 30 May 2003 in the southern Israeli town of Dimona. Houston is in Israel for a week to make a recording with the sect. AFP PHOTO MEIR AZULAI ISRAEL OUT (Photo credit should read MEIR AZULAI/AFP/Getty Images)

US singer Whitney Houston attends in a welcoming ceremony as a guest of honor for the polygamous Black Hebrew sect 30 May 2003 in the southern Israeli town of Dimona. Houston is in Israel for a week to make a recording with the sect. AFP PHOTO/Tal COHEN ISRAEL OUT (Photo credit should read TAL COHEN/AFP/Getty Images)

NEW YORK, NY - OCTOBER 22: Nick Gordon and Bobbi Kristina Brown attends 'The Houstons: On Our Own' series premiere party at the Tribeca Grand Hotel on October 22, 2012 in New York City. (Photo by Shareif Ziyadat/FilmMagic)

American singer Whitney Houston, June 1988 (Photo by RDA/Getty Images)

Married singers Whitney Houston and Bobby Brown. (Photo by Time Life Pictures/DMI/The LIFE Picture Collection/Getty Images)

TAMPA, FL - JANUARY 27: Whitney Houston sings the National Anthem during the pregame show at Super Bowl XXV while tens of thousands of football fans wave tiny American flags in an incredible outburst of patriotism during the Persian Gulf War on 01/27/1991. (Photo by Michael Zagaris/Getty Images)

NEWARK, NJ - FEBRUARY 14: Mourners leave messages outside New Hope Baptist Church on February 14, 2012 in Newark, New Jersey. Whitney Houston's body is being held at Whigham Funeral Home before the funeral on Saturday at New Hope Baptist Church. PHOTOGRAPH BY Laurentiu Garofeanu/ Barcroft USA /Barcoft Media via Getty Images

NEW YORK, NY - OCTOBER 22: TV Personality Bobbi Kristina Brown attends 'The Houstons: On Our Own' Series Premiere Party at Tribeca Grand Hotel on October 22, 2012 in New York City. (Photo by Jim Spellman/WireImage)

NEW YORK, NY - OCTOBER 22: Singer Cissy Houston and TV Personality Bobbi Kristina Brown attend 'The Houstons: On Our Own' Series Premiere Party at Tribeca Grand Hotel on October 22, 2012 in New York City. (Photo by Jim Spellman/WireImage)

Married singers Bobby Brown and Whitney Houston. (Photo by Time Life Pictures/DMI/The LIFE Picture Collection/Getty Images)

NEW YORK CITY - NOVEMBER 5: Singer Whitney Houston attends the press conference to announce her new album 'My Love is Your Love' on November 5, 1998 at Sony Music Studios in New York City. (Photo by Ron Galella, Ltd./WireImage)

As hundreds of supporters turned out for a vigil in Riverdale, Ga., on Monday night for Bobbi Kristina Brown, Tina and Shayne Brown - sister and nephew to Bobby Brown - remain optimistic about her condition.

RIVERDALE, GA - FEBRUARY 09: Supporters attend the Bobbi Kristina Brown Candlelight Vigil at Riverdale Town Center on February 9, 2015 in Riverdale, Georgia. (Photo by John E. Davidson/Getty Images)

RIVERDALE, GA - FEBRUARY 09: Supporters attend the Bobbi Kristina Brown Candlelight Vigil at Riverdale Town Center on February 9, 2015 in Riverdale, Georgia. (Photo by John E. Davidson/Getty Images)

ATLANTA, GA - FEBRUARY 7: Cissy Houston arrives to visit Bobbi Kristina Brown at the Emory University Hospital on February 7, 2015 in Atlanta, Georgia. Bobbi Kristina Brown, daughter of Whitney Houston and Bobby Brown, was reportedly found unconscious in her bathtub on January 31, 2015. (Photo by John E. Davidson/Getty Images)

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Whitney Houston's daughter, Bobbi Kristina Brown, has had a setback after doctors tried to take her out of her medically induced coma Wednesday.

Brown reportedly had violent seizures after she was taken off some medications. Now, she is back in a medically induced coma. (Video via WEWS)

This news is all being attributed to a "family source" CNN spoke with.

People quoted a professor of NeuroCritical Care at Georgia Regents University, who says individuals are usually taken out of a medically induced coma if the reason they went under has improved, or to see what the patient can do for themselves.

CNN also reports last week doctors removed her breathing tube, allowing Brown to breathe through a hole in her throat. CNN's medical correspondent said at the time that she would likely be on support for more weeks and possibly months.

The 21-year-old was found unresponsive in a bathtub at her home on Jan. 31. Police say her case is being treated as a criminal investigation.